中危 Eclipse JGit 中对不区分大小写的文件系统的不当处理允许任意文件写入 (CVE-2023-4759)
CVE编号
CVE-2023-4759利用情况
暂无补丁情况
官方补丁披露时间
2023-09-12漏洞描述
Arbitrary File Overwrite in Eclipse JGit <= 6.6.0 In Eclipse JGit, all versions <= 6.6.0.202305301015-r, a symbolic link present in a specially crafted git repository can be used to write a file to locations outside the working tree when this repository is cloned with JGit to a case-insensitive filesystem, or when a checkout from a clone of such a repository is performed on a case-insensitive filesystem. This can happen on checkout (DirCacheCheckout), merge (ResolveMerger via its WorkingTreeUpdater), pull (PullCommand using merge), and when applying a patch (PatchApplier). This can be exploited for remote code execution (RCE), for instance if the file written outside the working tree is a git filter that gets executed on a subsequent git command. The issue occurs only on case-insensitive filesystems, like the default filesystems on Windows and macOS. The user performing the clone or checkout must have the rights to create symbolic links for the problem to occur, and symbolic links must be enabled in the git configuration. Setting git configuration option core.symlinks = false before checking out avoids the problem. The issue was fixed in Eclipse JGit version 6.6.1.202309021850-r and 6.7.0.202309050840-r, available via Maven Central https://repo1.maven.org/maven2/org/eclipse/jgit/ and repo.eclipse.org https://repo.eclipse.org/content/repositories/jgit-releases/ . The JGit maintainers would like to thank RyotaK for finding and reporting this issue.解决建议
建议您更新当前系统或软件至最新版，完成漏洞的修复。受影响软件情况
| # | 类型 | 厂商 | 产品 | 版本 | 影响面 | ||||
| 1 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 运行在以下环境 | |||||||||
| 应用 | eclipse | jgit | * | From (including) 6.6.0 | Up to (excluding) 6.6.1.202309021850 | ||||
| 运行在以下环境 | |||||||||
| 应用 | eclipse | jgit | * | From (including) 6.7.0 | Up to (excluding) 6.7.0.202309050840 | ||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | jgit | * | Up to (including) 3.7.1-6 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | jgit | * | Up to (including) 4.11.9-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | jgit | * | Up to (including) 4.11.9-2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | jgit | * | Up to (including) 4.11.9-2 | |||||
- 攻击路径 远程
- 攻击复杂度 复杂
- 权限要求 普通权限
- 影响范围 全局影响
- EXP成熟度 未验证
- 补丁情况 官方补丁
- 数据保密性 无影响
- 数据完整性 无影响
- 服务器危害 无影响
- 全网数量 N/A
| CWE-ID | 漏洞类型 |
| CWE-178 | 大小写敏感处理不恰当 |
| CWE-59 | 在文件访问前对链接解析不恰当（链接跟随） |
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